add nextflow d30e48d

nextflow/validation/test-overwrite.nf

@@ -0,0 +1,15 @@
+workflow {
+  foo()
+}
+
+process foo {
+  container 'quay.io/nextflow/bash'
+  publishDir "gs://rnaseq-nf/scratch/tests", overwrite: true
+  output:
+  path 'hello.txt'
+
+  script:
+  """
+  touch hello.txt
+  """
+}